The BMW R75 is a World Warfare II-era motorcycle and sidecar combination produced by the German company BMW.
In the 1930s BMW were creating a quantity of popular and highly effective motorcycles. In 1938 development of the R75 started in reaction to a request from the German Army.
Preproduction types of the R75 were driven by the 750 cc aspect valve engine, that was predicated on the R71 engine unit. However it was quickly found necessary to design an all-new OHV 750 cc engine for the R75 unit. This OHV engine motor later became the foundation for succeeding post-war twin BMW engines like the R51/3, R67 and R68.
The third side-car wheel was driven with an axle connected to the trunk wheel of the motorcycle. We were holding equipped with a locking differential and selectable highway and off-road equipment ratios by which all four and reverse gears did the trick. This made the R75 highly manoeuvrable and capable of negotiating most areas. Additional motorcycle manufactures, like FN and Norton, provided an optional drive to sidecars.
The BMW R75 and its own competitor the Z?ndapp KS 750 were both extensively used by the Wehrmacht in Russia and North Africa, though after a period of analysis it became clear that the Z?ndapp was the superior machine. In August 1942 Z?ndapp and BMW, on the urging of the Military, agreed upon standardization of parts for both machines, with a view of eventually making a Z?ndapp-BMW hybrid (chosen the BW 43), when a BMW 286/1 side-car would be grafted onto a Z?ndapp KS 750 motorcycle. They also arranged that the produce of the R75 would cease once production come to 20,200 units, and after that point BMW and Z?ndapp would only produce the Z?ndapp-BMW machine, developing 20,000 each year.
Since the focus on of 20,200 BMW R75's was not reached, it continued to be in production before Eisenach manufacturing plant was so terribly harmed by Allied bombing that development ceased in 1944. An additional 98 units were put together by the Soviets in 1946 as reparations.
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